diff --git a/recipe/bld.bat b/recipe/bld.bat
index 0acf6874..7443feae 100644
--- a/recipe/bld.bat
+++ b/recipe/bld.bat
@@ -24,7 +24,6 @@ cmake .. -G "Ninja" ^
     -DVTK_INSTALL_PYTHON_MODULE_DIR:PATH="%SP_DIR%" ^
     -DVTK_USE_SYSTEM_ZLIB:BOOL=ON ^
     -DVTK_USE_SYSTEM_FREETYPE:BOOL=ON ^
-    -DVTK_USE_SYSTEM_HDF5:BOOL=ON ^
     -DVTK_USE_SYSTEM_LIBXML2:BOOL=ON ^
     -DVTK_USE_SYSTEM_PNG:BOOL=ON ^
     -DVTK_USE_SYSTEM_JPEG:BOOL=ON ^
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 8be3dab0..7ad283bd 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -26,7 +26,7 @@ requirements:
     # VTK Third Party dependencies
     - zlib
     - freetype
-    - hdf5
+    - hdf5  # [unix]
     - libxml2
     - libpng
     - jpeg
@@ -40,7 +40,7 @@ requirements:
     # VTK Third Party dependencies
     - zlib
     - freetype
-    - hdf5
+    - hdf5  # [unix]
     - libxml2
     - libpng
     - jpeg